]> May 4, 2011 b10-host 1 BIND10 b10-host DNS lookup utility 2011 Internet Systems Consortium, Inc. ("ISC") b10-host -a -c class -d -p port -r -t type -v name server The b10-host utility does DNS lookups. Its initial goal is to be a host 1 clone, but also add a few features useful for BIND 10 development testing. By default, it looks up the A, AAAA, and MX record sets for the name. Optionally, you may select a name server to query against by adding the server argument. The arguments are as follows: -a Enable verbose mode and do a query for type ANY. (If the -t option is also set, then the ANY query is not done, but it still uses verbose mode.) -c class Define the class for the query. The default is IN (Internet). -d Enable verbose output mode, including elapsed time in milliseconds. Verbose mode shows the header, question, answer, authority, and additional sections (if provided). (Same as -v.) -p port Select an alternative port for the query. This may be a number or a service name. The default is 53 (domain). This is not a standard feature of host 1. -r Disable recursive processing by not setting the Recursion Desired flag in the query. -t type Select a specific resource record type for the query. By default, it looks up the A, AAAA, and MX record sets. (This overrides the -a option.) -v Same as -d option. b10-host does not do reverse lookups by default yet (by detecting if name is a IPv4 or IPv6 address). Unknown -c class or -t type causes b10-host to Abort. Not all types are supported yet for formatting. Not all switches are supported yet. It doesn't use /etc/resolv.conf at this time. The default name server used is 127.0.0.1. -p is not a standard feature. The C++ version of b10-host was started in October 2009 by Jeremy C. Reed of ISC. Its usage and output were based on the standard host command.